Plug 
into the equation of the ellipsoid:
Complete the square:
Then the intersection is such that
which resembles the equation of a circle, and suggests a parameterization is polar-like coordinates. Let
(Attached is a plot of the two surfaces and the intersection; red for the positive root 
, blue for the negative)
If you turn all the numbers into decimals it becomes, -6.25, -6.35, -6.20, and, 6.1 so in order it would go 6.1, -6.20, -6.25, -6.35
Answer:
Step-by-step explanation:
We need the rest of the question please.
Assuming your point is Y(-4, -2), its reflection across y=0 simply changes the sign of the y-coordinate.
The point after reflection is Y'(-4, 2).
